fix #939

mitmproxy/addons/__init__.py

@@ -1,35 +1,39 @@
 from mitmproxy.addons import anticache
 from mitmproxy.addons import anticomp
+from mitmproxy.addons import check_alpn
+from mitmproxy.addons import check_ca
 from mitmproxy.addons import clientplayback
-from mitmproxy.addons import streamfile
+from mitmproxy.addons import disable_h2c_upgrade
 from mitmproxy.addons import onboarding
 from mitmproxy.addons import proxyauth
 from mitmproxy.addons import replace
 from mitmproxy.addons import script
-from mitmproxy.addons import setheaders
 from mitmproxy.addons import serverplayback
+from mitmproxy.addons import setheaders
 from mitmproxy.addons import stickyauth
 from mitmproxy.addons import stickycookie
 from mitmproxy.addons import streambodies
+from mitmproxy.addons import streamfile
 from mitmproxy.addons import upstream_auth
-from mitmproxy.addons import disable_h2c_upgrade
 
 
 def default_addons():
     return [
-        onboarding.Onboarding(),
-        proxyauth.ProxyAuth(),
         anticache.AntiCache(),
         anticomp.AntiComp(),
+        check_alpn.CheckALPN(),
+        check_ca.CheckCA(),
+        clientplayback.ClientPlayback(),
+        disable_h2c_upgrade.DisableH2CleartextUpgrade(),
+        onboarding.Onboarding(),
+        proxyauth.ProxyAuth(),
+        replace.Replace(),
+        script.ScriptLoader(),
+        serverplayback.ServerPlayback(),
+        setheaders.SetHeaders(),
         stickyauth.StickyAuth(),
         stickycookie.StickyCookie(),
-        script.ScriptLoader(),
-        streamfile.StreamFile(),
         streambodies.StreamBodies(),
-        replace.Replace(),
+        streamfile.StreamFile(),
-        setheaders.SetHeaders(),
-        serverplayback.ServerPlayback(),
-        clientplayback.ClientPlayback(),
         upstream_auth.UpstreamAuth(),
-        disable_h2c_upgrade.DisableH2CleartextUpgrade(),
     ]

mitmproxy/addons/check_alpn.py

@@ -0,0 +1,17 @@
+import mitmproxy
+from mitmproxy.net import tcp
+
+
+class CheckALPN:
+    def __init__(self):
+        self.failed = False
+
+    def configure(self, options, updated):
+        self.failed = mitmproxy.ctx.master.options.http2 and not tcp.HAS_ALPN
+        if self.failed:
+            mitmproxy.ctx.master.add_log(
+                "HTTP/2 is disabled because ALPN support missing!\n"
+                "OpenSSL 1.0.2+ required to support HTTP/2 connections.\n"
+                "Use --no-http2 to silence this warning.",
+                "warn",
+            )

mitmproxy/addons/check_ca.py

@@ -0,0 +1,24 @@
+import mitmproxy
+
+
+class CheckCA:
+    def __init__(self):
+        self.failed = False
+
+    def configure(self, options, updated):
+        has_ca = (
+            mitmproxy.ctx.master.server and
+            mitmproxy.ctx.master.server.config and
+            mitmproxy.ctx.master.server.config.certstore and
+            mitmproxy.ctx.master.server.config.certstore.default_ca
+        )
+        if has_ca:
+            self.failed = mitmproxy.ctx.master.server.config.certstore.default_ca.has_expired()
+            if self.failed:
+                mitmproxy.ctx.master.add_log(
+                    "The mitmproxy certificate authority has expired!\n"
+                    "Please delete all CA-related files in your ~/.mitmproxy folder.\n"
+                    "The CA will be regenerated automatically after restarting mitmproxy.\n"
+                    "Then make sure all your clients have the new CA installed.",
+                    "warn",
+                )

mitmproxy/addons/termlog.py

@@ -5,9 +5,9 @@ from mitmproxy import log
 
 
 class TermLog:
-    def __init__(self, outfile=sys.stdout):
+    def __init__(self, outfile=None):
         self.options = None
-        self.outfile = outfile
+        self.outfile = outfile or sys.stdout
 
     def configure(self, options, updated):
         self.options = options

mitmproxy/certs.py

@@ -3,8 +3,8 @@ import ssl
 import time
 import datetime
 import ipaddress
-
 import sys
+
 from pyasn1.type import univ, constraint, char, namedtype, tag
 from pyasn1.codec.der.decoder import decode
 from pyasn1.error import PyAsn1Error
@@ -13,8 +13,8 @@ import OpenSSL
 from mitmproxy.types import serializable
 
 # Default expiry must not be too long: https://github.com/mitmproxy/mitmproxy/issues/815
-
 DEFAULT_EXP = 94608000  # = 24 * 60 * 60 * 365 * 3
+
 # Generated with "openssl dhparam". It's too slow to generate this on startup.
 DEFAULT_DHPARAM = b"""
 -----BEGIN DH PARAMETERS-----

mitmproxy/tools/console/master.py

@@ -33,8 +33,6 @@ from mitmproxy.tools.console import statusbar
 from mitmproxy.tools.console import window
 from mitmproxy.utils import strutils
 
-from mitmproxy.net import tcp
-
 EVENTLOG_SIZE = 10000
 
 
@@ -272,16 +270,6 @@ class ConsoleMaster(master.Master):
                 print("Could not load file: {}".format(ret), file=sys.stderr)
                 sys.exit(1)
 
-        self.loop.set_alarm_in(0.01, self.ticker)
-        if self.options.http2 and not tcp.HAS_ALPN:  # pragma: no cover
-            def http2err(*args, **kwargs):
-                signals.status_message.send(
-                    message = "HTTP/2 disabled - OpenSSL 1.0.2+ required."
-                              " Use --no-http2 to silence this warning.",
-                    expire=5
-                )
-            self.loop.set_alarm_in(0.01, http2err)
-
         self.loop.set_alarm_in(
             0.0001,
             lambda *args: self.view_flowlist()

mitmproxy/tools/dump.py

@@ -6,7 +6,6 @@ from mitmproxy import addons
 from mitmproxy import options
 from mitmproxy import master
 from mitmproxy.addons import dumper, termlog
-from mitmproxy.net import tcp
 
 
 class DumpError(Exception):
@@ -30,7 +29,13 @@ class Options(options.Options):
 
 class DumpMaster(master.Master):
 
-    def __init__(self, options, server, with_termlog=True, with_dumper=True):
+    def __init__(
+            self,
+            options: Options,
+            server,
+            with_termlog=True,
+            with_dumper=True,
+    ) -> None:
         master.Master.__init__(self, options, server)
         self.has_errored = False
         if with_termlog:
@@ -38,8 +43,6 @@ class DumpMaster(master.Master):
         self.addons.add(*addons.default_addons())
         if with_dumper:
             self.addons.add(dumper.Dumper())
-        # This line is just for type hinting
-        self.options = self.options  # type: Options
 
         if not self.options.no_server:
             self.add_log(
@@ -47,13 +50,6 @@ class DumpMaster(master.Master):
                 "info"
             )
 
-        if self.server and self.options.http2 and not tcp.HAS_ALPN:  # pragma: no cover
-            self.add_log(
-                "ALPN support missing (OpenSSL 1.0.2+ required)!\n"
-                "HTTP/2 is disabled. Use --no-http2 to silence this warning.",
-                "error"
-            )
-
         if options.rfile:
             try:
                 self.load_flows_file(options.rfile)

test/mitmproxy/addons/test_check_alpn.py

@@ -0,0 +1,23 @@
+from mitmproxy.addons import check_alpn
+from mitmproxy.test import taddons
+from ...conftest import requires_alpn
+
+
+class TestCheckALPN:
+
+    @requires_alpn
+    def test_check_alpn(self):
+        msg = 'ALPN support missing'
+
+        with taddons.context() as tctx:
+            a = check_alpn.CheckALPN()
+            tctx.configure(a)
+            assert not any(msg in m for l, m in tctx.master.event_log)
+
+    def test_check_no_alpn(self, disable_alpn):
+        msg = 'ALPN support missing'
+
+        with taddons.context() as tctx:
+            a = check_alpn.CheckALPN()
+            tctx.configure(a)
+            assert any(msg in m for l, m in tctx.master.event_log)

test/mitmproxy/addons/test_check_ca.py

@@ -0,0 +1,19 @@
+import pytest
+from unittest import mock
+
+from mitmproxy.addons import check_ca
+from mitmproxy.test import taddons
+
+
+class TestCheckCA:
+
+    @pytest.mark.parametrize('expired', [False, True])
+    def test_check_ca(self, expired):
+        msg = 'The mitmproxy certificate authority has expired!'
+
+        with taddons.context() as tctx:
+            tctx.master.server = mock.MagicMock()
+            tctx.master.server.config.certstore.default_ca.has_expired = mock.MagicMock(return_value=expired)
+            a = check_ca.CheckCA()
+            tctx.configure(a)
+            assert any(msg in m for l, m in tctx.master.event_log) is expired

test/mitmproxy/test_tools_dump.py

@@ -1,10 +1,13 @@
 import os
+import pytest
+from unittest import mock
 
-from mitmproxy.tools import dump
 from mitmproxy import proxy
-from mitmproxy.test import tutils
 from mitmproxy import log
 from mitmproxy import controller
+from mitmproxy.tools import dump
+
+from mitmproxy.test import tutils
 from . import mastertest
 
 
@@ -37,3 +40,17 @@ class TestDumpMaster(mastertest.MasterTest):
         ent.reply = controller.DummyReply()
         m.log(ent)
         assert m.has_errored
+
+    @pytest.mark.parametrize("termlog", [False, True])
+    def test_addons_termlog(self, termlog):
+        with mock.patch('sys.stdout'):
+            o = dump.Options()
+            m = dump.DumpMaster(o, proxy.DummyServer(), with_termlog=termlog)
+            assert (m.addons.get('termlog') is not None) == termlog
+
+    @pytest.mark.parametrize("dumper", [False, True])
+    def test_addons_dumper(self, dumper):
+        with mock.patch('sys.stdout'):
+            o = dump.Options()
+            m = dump.DumpMaster(o, proxy.DummyServer(), with_dumper=dumper)
+            assert (m.addons.get('dumper') is not None) == dumper

test/mitmproxy/test_web_master.py

@@ -1,13 +1,16 @@
 from mitmproxy.tools.web import master
 from mitmproxy import proxy
 from mitmproxy import options
+from mitmproxy.proxy.config import ProxyConfig
+
 from . import mastertest
 
 
 class TestWebMaster(mastertest.MasterTest):
     def mkmaster(self, **opts):
         o = options.Options(**opts)
-        return master.WebMaster(o, proxy.DummyServer(o))
+        c = ProxyConfig(o)
+        return master.WebMaster(o, proxy.DummyServer(c))
 
     def test_basic(self):
         m = self.mkmaster()